FITech Fuel Injection Ultimate LS induction System Standalone ECU
546-70050
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Items You Need
Standalone ECU
If you’re considering utilizing a factory intake, injectors, and cable operated throttle body, FiTech’s Ultimate LS standalone self-learning ECUs will get your engine ready for optimal performance. This self-learning Ultimate LS ECU is the best solution for a standalone LS swap and replaces the OEM computer and harness. This kit is dedicated to LS or similar engines with crank and cam sensors. The Ultimate LS standalone kit will self-learn to most cam swaps. Usually only very large cam grinds will require additional tuning in the system. Easily tuned for even the most novice tuner, this kit includes a touch-screen controller for easy setup and configuration. • Application: LS or similar engines with crank and cam sensors.Small Block V8 GEN. III/IV LS-based Chevrolet street and performance engines. Contains a 3 BAR MAP sensor for power adder applications that supports up to 30 PSI of boost.• Note: This kit does not work with drive by wire throttle bodies and variable valve timing. These engines can be modified to remove these components. • Self-learning ECU with touch screen controller for easy setup and configuration.• Sequential fuel and spark control with individual cylinder trim.• 3 BAR MAP sensor automatically detects up to 30 psi boost.• Stainless O2 Sensor bung (clamp or weld on).• 24X and 58X crank and cam compatible.• Two programmable fan control outputs.• Tach output driver for most tachometers (5V).• Output driver for most speedometers.• Compatible with car and truck coils.• On the fly programmable target AFR and timing (if desired).• Fuel pump relay output.• Custom wire harness (uses factory coil pack sub harness).• Knock sensor control.
Specifications:
Part Type
Manufacturer's Part Number:
70050
Shipping Weight:
8.83
Package Height:
8.8
Package Depth:
11.9
Package Width:
12.4
Part Category:
Performance Parts
Part Fitment:
Semi Universal
70050 is rated
out of
5 by
4.
Rated 5 out of
5
by
Ericlsxturbotransam from
Great unit must have for LS swap
Makes LS swap so easy a must have . And it is high quality wire harness ,looks professional.It also works with boosted applications and self tunes
Date published: 2021-05-05
Rated 5 out of
5
by
Katl from
Best Bang for the Buck
I'm thoroughly impressed with this ecm/harness. I had to learn about my lb/hr, CID, 24x knock, and it fired right up!!! This will be my first purchase for my next LS swap!
Date published: 2020-12-03
Rated 4 out of
5
by
79 Z from
The her u buy spring this away from the intake box is suppose to be in. It's suppose to already be worth the freaking loaded intake smh. They take it out and charge another 900 bucks
Date published: 2022-02-23
Rated 3 out of
5
by
mazzei14 from
Not bad, but far from good
I’ve had my fitech 70050 in my ls swapped fc rx7 for about three months now. The harness is very clearly labeled with quality connectors. Initiating setup is very easy, very simple to get the car started, and the self learning works great. However, there are many downsides. First off, you are limited to four guages, and there is lno way to send data to a tablet or computer for more gauges. There is also a severe lack of features. There is no two step/ antilag and no flex fuel/ ethanol content features. Fitech customer service is poor to say the least, took 5 days to get an email back. Ultimately this is a good fuel injection kit for the average guy with a mild ls swap, but for those who want more from there engine management, this isn’t not for them.
Date published: 2018-12-20
Will this work on a ls1 in a 2005 trailblazer
Fitech 546-70050 will work on a ls1 in a 05 trailblazer it may require additional parts such as intake and injectors. this kit will not control the transmission
Date published: 2022-11-09
I am planning on putting a 4-speed Muncie behind a 5.3 vortec motor. Will I need to add a vehicle speed sensor for this system to work on my car?
You should not need a speed sensor with the Muncie manual transmission.
Date published: 2018-09-20
Is this the correct kit to run for a 6.0 backed by a TH400 trans? Looking to go drive by cable
This is a stand alone system, you will also need a transmission controller if it is an automatic.
Date published: 2021-01-02
on the stand alone kits will they work with boost?
Yes, these can be used in a boosted application with the proper MAP sensor.
Date published: 2018-07-24
Does this kit come with hand controller as per other FiTech kits? What is the best price, including getting it shipped to Australia in au $? Thanks
This is a stand alone kit and does not include the transmission controller. This will have the ECU controller. You can add this kit to your shopping cart and checkout with your address to get your total price with shipping included.
Date published: 2018-07-09
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Some parts are not legal for use in California or other states with similar laws / regulations
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.